Brimar CV2129 VHF power amplifier pentode
 |
This valve measures 65x20mm and has a B9A base |
See also CV4039 which is based on this valve, and CV2014 which is a modified version.
| Heater voltage | 6V | |
| Heater current | 0.75A | |
| Max anode voltage (Ia=0) | 500V | |
| Max screen voltage (Ig2=0) | 500V | |
| Max operating anode voltage | 300V | |
| Max operating screen voltage | 250V | |
| Max anode dissipation | 12W | |
| Max screen dissipation | 2W | |
| Anode current | (Va=Vg2=250V; Vg1=-7.5V) |
45mA |
| Screen current | 4.5mA | |
| Mutual conductance | 7mA/V | |
| Amplification factor (g1 - g2) | 16 | |
| Max operating frequency | 175MHz | |
| Capacitances | ||
| Cag1 (max) | 0.3pF | |
| Cge (nom) | 9.5pF | |
| Cae (nom) | 4.5pF | |
| Pin | Function |
| 1 | Anode |
| 2 | n/c |
| 3 | Suppressor grid |
| 4 | Heater |
| 5 | Heater |
| 6 | Screen grid |
| 7 | Cathode |
| 8 | Control grid |
| 9 | Control grid |
